65028613 has 16 divisors (see below), whose sum is σ = 74027520. Its totient is φ = 56669184.

The previous prime is 65028611. The next prime is 65028629. The reversal of 65028613 is 31682056.

It is not a de Polignac number, because 65028613 - 2¹ = 65028611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65028611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22245 + ... + 24997.

It is an arithmetic number, because the mean of its divisors is an integer number (4626720).

Almost surely, 2^65028613 is an apocalyptic number.

It is an amenable number.

65028613 is a deficient number, since it is larger than the sum of its proper divisors (8998907).

65028613 is a wasteful number, since it uses less digits than its factorization.

65028613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 65028613 is about 8064.0320559879. The cubic root of 65028613 is about 402.1315646534.

The spelling of 65028613 in words is "sixty-five million, twenty-eight thousand, six hundred thirteen".